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Table 2-4, Thermally significant components, Wn in – Artesyn MVME7100ET Single Board Computer Installation and Use (June 2014) User Manual

Page 30: Figure 2-1, Figure 2-2, Hardware preparation and installation

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Hardware Preparation and Installation

MVME7100ET Single Board Computer Installation and Use (6806800K87E)

30

The preferred measurement location for a component may be junction, case, or ambient as
specified in the table below. Junction temperature refers to the temperature measured by an
on-chip thermal device. Case temperature refers to the temperature at the top, center surface
of the component. Air temperature refers to the ambient temperature near the component.

Table 2-4 Thermally Significant Components

Reference
Designator

Generic Description

Maximum Allowable
Component Temperature in
Centigrade

Measurement
Location

U27, U4

Gb Ethernet Transceiver

105°

Ambient

U25, U26, U28

PCI-X/PCI-Express Bridge

85°

Junction

U22

PCI-Express Bridge

115°

Ambient

U24

VME Bridge

90°

Junction

U10, U11, U12,
U13, U14, U56,
U57, U58, U59,
U6, U60, U61,
U62, U63, U64,
U7, U8, U9

DDR2 SDRAM

95°

Case

U20

MPU

105°

Junction